Home / 136,605.93-188,568.12-102,712.84

Finding the Fourth Proportional to 136,605.93, 188,568.12 and 102,712.84

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Solution

The fourth proportional to 136,605.93, 188,568.12 and 102,712.84 is: 141,782.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,605.93 : 188,568.12 = 102,712.84 : x
  2. Step 2: Convert to fraction form
    136,605.93/188,568.12 = 102,712.84/x
  3. Step 3: Cross multiply
    136,605.93x = 188,568.12 × 102,712.84
  4. Step 4: Simplify right side
    136,605.93x = 19,368,367,535.35
  5. Step 5: Solve for x
    x = 19,368,367,535.35/136,605.93
  6. Step 6: Final answer
    x = 141,782.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.